Rigid-bridge eyeglasses.



F. PELS-LEUSDEN. RIGID BRIDGE EYEGLASSES. APPLICATION FILED JUNE 26, 1913.

1,1 12,830, Patented 0011.6, 1914.

WITNESSES I INVENTOR g 7 FRIEDRICH PEL5-LEU5DEN I W A V MW l zw gtm X ATTORNEYS THE NORRIS PETERS 00.. PHOTO'LITHQ. WASHINGTON. D. Cv

FRIEDRioH PELS-LEUSDEN, or anemia, GERMANY.

=13 RIGID-BRIDGE,EYEGLASSES.

To all whom it may concern Be it known that I, FRIEDRICH; PELs- LEUSDEN, a subject of the German Emperor,

residing at Berlin, Germany, have invented certain new and useful Improvements in Rigid-l3ridge Eyeglasses, of which the following is a specification.

My invention relates to eyeglasses pro.

vided with rigid bridges and to the particular class of such eyeglasses known asthe finger-piece variety.

More especially, my invention hereinset forth is an improvement in the type of eye- ,glasses shown and described in my pending application No. 728,381, filed October 21, 1912. In said specification eyeglasses are disclosed which are provided with a rigid bridge and an arrangement of finger-pieces in which the turning or pivotal axis of each finger-piece is perpendicular. or. approximately perpendicular to the planeofthe lenses, instead of parallel thereto as in the usual construction, thereby securing certain peculiar advantages fully set forth in the specification referred to.

The object of my present invention isv to I provide an eyeglass of the type-just referred. to, having certain special features of con struction by means of which certain adthese novel constructive features, 1s the vantages are obtained. The chief-among elimination of the spiral spring which con- 3 trols the clamping plates or guards and the substitution therefor of other forms of springs better able to resist the wear and tear of daily use, simpler to make and to position, and having a wider range of resihf ency. Associated with this feature is the provision of special finger-pieces for spreading the clamping plates, saidfinger-pieces being independent of but slidably' or yield- .iingly relatedtofthe [clamping plates, and finger-pieces and clamping plates being independently turnable about different axes.

- Other features of my invention will ap- -pear as the specification proceeds."

. Referring tothe; drawings, F gure 1 representsa-partial' front elevation and Fig. 2

-;a section along the line 22 of Fig. 1, of

an eyeglass embodying a preferred form of jmy invention; Figs. Byand 4 represent respectively, partialperspective views showing different modes of adjustably attaching the finger-piece spreader'arms to'the clamping plates; Figs. 5 and -6 represent views,

similarto that of Fig. 1, showing. forms of Specification of Letters Patent.

" Patented 061:. e, 1914.

Application. filed June 26,1913. Serial No. 775,857. I

structions for attaching the clamping plate arms; and F gs. .7 and S-show two other modificat ons of my inventlon provided with two different auxiliary spring constructions for adding to the resiliency, of the clamping plate arms.

In the drawings in all the modifications (except Fig.5 which shows ariinmed eyeglass), the lenses 1 are ,connec tedb-y a rigid bridgeQlf provided with ears 3 to embrace the lens, and are fastened in position by screws 4; lugs 5, attachedto the bridge or to the parts joined thereto, bear against-the edge of each lens for a greater distance above and below said ears. Other styles of in the spirit of my invention.

Inthe formshown in Figs. 1 and 2, the clamping plates 7 are preferably of" the 1 my invention employing two different conconnecting structure maybe employed withshape shown, roughly describable as in:

verted U-shape, although other suitable designs of clamp plate may be employed, if desired. One branch of this U plate is rigidly attached to the upper end of clamping plate arm. 8 of resilient material which extends downwardly and outwardly to a point somewhat below the center of, the lenses and then bends at 10 upwardly and outwardly and has its other end attached immovably to a. boss in which is inserted the .pivot post 11, substantially perpendicular ;to the plane of the lenses, upon which the finger-piece lever turns This finger-piece lever has a lower arm, or finger-piece proper 13--andan upper arm 7 bent across the plane;

of the lensesv and arranged to slidably cooperate with the back of the clamping plate 7*. a For this purpose a short slot 20 is cut into the top edge of the arm and into this slot is fitted a pin 17 'rivetedor otherwise suitably fixed upon the back of the clamping plate and provided with a head which prevents the pin and slotted arm from becoming disconnected. The clamping plate garm 8 is preferably of flat metal as shown andv'is positioned and shaped so that when the two clamp arms, with their clamping plates, are in their innermost positions, they will re st;.upon thesides of the nose with bout the right amount of pressure, while the clamping plates. proper will extend into the inner canthi ofthe eyes and rest against the top of the arch of the eye cavity.-

0a, the finger-pieces 13 are grasped be- To put these eyeglasseson or take them V mu l tween the thumb and. fore-finger in the, usual way and pinched together. The; upper arms 7 are thereby moved outwardly and carry with them the clamp plates 74,:

\ against the resiliency of the bend at -the.

lower part :of the clamp arm. As the; clamping plates are thus spread apart or allowed to come together, the upper arm 7 slides upon the back of the clamping plates,'

this ring; By making the ring sufiic'iently longfthe, sliding movement is free and there is notendeney tobind.

In Fig. 4: a bent arm 19 is welded, soldered or stamped out from, or in any other way suitably attached to, the back of .one branch of the clamp plate so as to.

extend downwardly parallel with the branch. The end off-the upper arm '7 is flattened or widened, and bentso -as to form a short section of a cylinder which fits over the part-19.

' Instead of having the clamping plate arm 7 bent back-upon itself to be finally attached to the finger-piece pivot-post ends,

' as shown in Figs. land 2, I may dispense with the outer part of theclamp'ing plate arm by cutting off the arm at about its lowest point and attaching'the end directly to the rim at 16 as shown ,in F i'g. 5. This construction cannot, of course, be conveniently employed with rimless glasses.

In Fig. 6 both the "inner and outer portion of clamping plate arm 8 lie practically in contact with one another, there being a short radial bend provided at the junction point to give the necessary resiliency. p The constructions. of Figs. 5 and 6 are advantageous when the glasses are to be used by those having small pupi-llary distances as the clamping plate arms are thus kept a reasonable distance away from the nose. In these two constructions, it should be observed that the junction or attaching point of the arm 8 can only lie in the plane of the lenses when the arm itself is bent to one side to avoid the-nose bridge, or when the arm is fastened at its bottom to a plate or the equivalent which is itself projected to one side, or when some equivalent con ,struction is adopted.

It may sometimes happen that "it is desired to supplement the resiliency of the clamping plate arms; Fig. 7 shows a construction adapted for this purpose. Here the back of the clamping plate is provided with a rigidly attached bent springy strip .of metal 12, the free end of which bears against the rim of the lens and is made wide enough to be Vd so as to embrace said rim and 'not slip therefrom. ,This

"springy strip may be a part 'ofthe upper arm of the finger piece.

Fig. 8 shows stillpanother arrangement forsupplementing the "resiliency of the clamping p latearms. Here the upper arm 7 of the finger-pieces is flattened and thinned otherwise made springyland is bent around so that "it can be screwed fast to the back of the clamping plate arm.

As the finger-pieces are pinched together and the upper arms moved outwardly, each of said arms bends at its flattened and thinned port-ions against its own resiliency and this ben't part upon release of the finger-pieces, tends to straighten itself-out again anti thus furnishes the necessary supplementaryzspring force.

In any of the several constructions shown the clamping plate arms may be so bent that they' themfselyes will lie upon the surfaeeof the nose thus serving both as clampi-ng plates and as clamping plate arms.

- When the elamping plates are spread'by the operation of Tt'he "finger-pieces "13 each clamping-plate is swung about the center 10 (or 16, Fig. 5) while thefin-gerpieee itself swings about a different center '11. It is for this reason that 'thearm '7 is arranged to slide upon the back of the clamping plate =arI n (Figs.'14h) although the same action maybe obtained, as has been shown,

"by making the upper part of arm 7 bowed and flexible as in Fi g. 8. Andi-f the bend made suflieiently flexible, it is clear'that the j "at I0 -'(in allqconstr-uctions except Fig. 5) be j upper part of arm 7 need be neither flexible.

nor *slidab le since {the entire arm 8 may be moved up and down sufiieiently through the yielding of said bend at 8 to/permit the I clamping plates to be satisfactorily operated fin'flthe use iof theglasses. I As with the eyeglasses disclosed earlier application, SerialfN'o. 728,381, al-

ready referred to, "so here with the present I constructions, the clamping plates may be providedwith aux il iary p lates at the ends thereof to fhelp steady the eyeglasses upon the nose and to .hold them securely in place.

.It will be ;-seen"f romthe foregoing -de- 'scr-iption and ema'la-na-tionthat my invention herein described enables finger-piece jeyeglasses to "be provided in whichthe usual spiral springs commonly found in suchf-"eyeglasses and which, as is well *lmown, are

fragile andeasily injured, areeomp'letely dispensed with and that all necessary resili-' 'ency '-=for=the satisfactory adjustment of the glasses upon the nose is secured by fiat leaf springs having suflicient material and dimensions sufliciently great .as to make them as strong and durable as any other part of the mounting.

Having described my invention, I claim:

1. In an eyeglass mounting comprising a rigid bridge for connecting the lenses, the combination of clamping plates for gripping the nose, resilient arms engaged with said plates and connected with the mounting and finger pieces for spreading said plates, the finger pieces and the clamping plates being arranged so as to move simultaneously about different axes but in the same angular direction said axes being substantially perpendicular to the plane of the lenses.

2. In an eyeglass mounting comprising a rigid bridge for connecting the lenses, the combination of nose guards having arms of resilient material which are bent back upon themselves to form loops and have their free ends connected to the mounting, the plane of said loops being substantially that of the lenses, and finger pieces pivoted upon axes which are perpendicular to the lenses and coincident with the attaching points of said free ends, one end of each finger piece being engaged with a nose guard.

Copies of this patent may be obtained for five cents each, by addressing the Washington, D. 0.

3. In an eyeglass mounting comprising a rigid bridge for connecting the lenses, the combination of clamping plates for grip ping the nose provided with resilient arms connected with the mounting, and finger pieces, operatively connected with said plates, at a point above the connection of resilient arm and mounting for spreading them, the finger pieces and the clamping plates being arranged to move in substantially the same plane.

4. In an eyeglass mounting comprising a rigid bridge for connecting the lenses, the combination of clamping plates for gripping the nose provided with resilient arms connected with the mounting, and finger pieces having sliding engagement with said plates for spreading them, the finger pieces and the clamping plates being arranged to move simultaneously in the same angular direction and in substantially the same plane.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

VVOLDEMAR HAU'PT, HENRY HAsPER.

Commissioner of Patents, 

